Starting mechanism for explosive-engines.



0. DUOKBR. STARTING MECHANISM FOR EXPLOSIVE ENGINES.

APPLICATION FILED 0'01. 10, 1910.

1,015,4 2, Patented Jan. 23, 1912.

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UNITED STATES PATENT "OFFICE.

ORLANDO DUCKER, OF'WASHINGTGN, DISTRICT OF COLUMBIA.

STARTING MECHANISM FOR nxPLosivE-Enemns. v

Specification of Letters Patent.

To all whom it may concern."

Be it known that I, ORLANDO Decline, a

citizen of the United States, residing at- VVashington, in the District of Columbia, have invented new and useful Improvements in Starting Mechanism for Explosive-Erigines', of which the following is a specification.

Engines of the explosive type are usually started by imparting an initial rotary movement to the crank shaft by hand and this is' usually attended with inconvenience and danger. I

The present invention provides novel means' for supplying a gaseous mixture under compressionto the cylinders of amultiple'engine and exploding the 'same,"thereby starting the engine without necessitating the operator leaving his seatin the machine. The present invention relates to multiple engines of the explosive type utilizing liquid fuel for carbureting air as the latter is supplied to the cylinder insuccession. In accordance with the invention a tank is sup plied containing air under pressure. header has connection with said valved pipes connect the header Wit-heac'h off-the cylinders, a fuel supplypipe has connection" with the pipe between the header and the air pressure tank, and a series of valves are interposed in the length of the several pipe connections for proper control of the The invention consists of the novel features, details of construction and combination of parts, which hereinafter will be more particularly set forth, illustrated in; the accompanying drawing, and pointed out in the appended claim.

' Referring to the drawing, forming a part of the application, Figure 1 is a top plan As stated the invention is designed most especially for explosive engines o the multiple type utilizing liquid fuel. The'draw- A the engine stops the pistons v Patented Jan. 23, 1912.. Application filed October 10, 1910. Serial No. 586,848. g

ing illustrates an engine of this type as applledto an automobile, the engine being of the four cylinder variety'and having the usual intake and exhaust. Since the present invention relates solelyto the starting mechanism it is not deemed necessary'todescribe'the engine or adjunctive parts in detail, since the startin mechanism maybe applied to any type 0 explosive engine and that shown is of ordinary construction and illustrated to demonstrate the application of the invention.

The numeral 1 designates a tank or other container for receiving air under pressure and this tank may be of 'any capacity and located in any convenientposit-ion. v

The numeral 2-indicates a header, which is of conical form. A pipe 3 connects'the air pressure tank-1 with the small end of A series of pipes 5 connect the large on the header 2 with the individualcylinders thereto when starting the engine. Each" of the header 2 and has a valve 4 in its length.

'of 'the' engine to supply gaseous mixture the pipes 5 has a valves6 and these valves are located close to the respective cylinders and are adapted to be simultaneously operated by means of a rod or bar 7. Normally the valves are closed and when it is required to open the valves the rod orbar 7 is moved inward against the tension of a spring 8,

which automatically closes the valves when the part 7 is relieved of the forceexerted for operating the same. A pipe 9 leading from the tank 1 containing the gasolene. or'bther,

liquidfuel connects with the pipe 3 near. the header 2 and at a point between said headerwand the. valve v 1. The pipe 9 terminates: in a nozzle or small outlet 10 so as to deliver a fine jet of gasolene or liquid fuel into the pipe 8 across the path of the air therethrough, whereby said fuel is vaporized. A valve 11 is located in the length.

of the fuel supply pipe 9. An auxiliary fuel tank 12 is connected with the fuel supply pipe 9 and has a valve 13 in its length. The

several valves 4, 11 and 13 are adapted to be operated from any convenient point.

In the operation of the invention the header 2 acts, as a mixer besides constituting a manifold for supplying the several pipes 5 with occupy different relative positions in the cylinders, as indicated most clearly by the dotted lines in Fig. 2. When it; is required to start the.

the gaseous mixture. When engine either one of the valves 11 or 13'is opened, after which the air valve 4- is opened to admit compressed air to the header 2.

The compressed air rushing through the pipe 3 past the nozzle 10 draws liquid fuel into the pipe 3 and carries .the same into the header where the air and fuel are mixed. The valves 6 are opened momenta'rilyonly by a quick action of the rod 7. The gas admitted into the cylinders acts with greatest force on the piston nearest the explosion end of the cylinder and moves said piston, the crank shaft and fly wheel sufiiciently, to start the engine. The spark being properly adjusted the gas inthe cylinder containing the piston on the working strokeis exploded. The air contained in the tank 1 is usually under an approximate pressure of two hundred ounds to the square inch and it is essential that the valves'6 be opened for an instant only, otherwise the pressure of the gaseous mixture will be equalized on all the pistonsand no movement result. The

auxiliary tank 12 is utilized chiefly when the supply of fuel is low in the main tank and may be dispensed with since the fuel may be drawn from the main tank upon opening the I valve 11. If the fuel lS to be'drawn from the auxiliary tank 12 when starting the engine the valve .ll-is not opened, the fuel being drawn from the tank 12 upon opening the valve 13. After the engine has been started the valve 13 is closed and the engine permitted to draw a supply through the usual intake and .pipe 14 connected with the pipe 9 leading to the main tank.

From the foregoing description, taken in connection with the accompanying drawing,

the advantages of the construction and of the method of operation will be readily apparent to those skilled in the art to which;

the invention appertains, and while I have described the principle of operation of the i vapor.

invention, together with the device which I now consider to be the embodiment thereof, I- desire to have it understood that the device shown is merely illustrative, and that such changes may be made when desired as are-within the scope of the claims appended hereto.

In'connection with the above, it is to be particularly noted that the com unication between the source of air supplied under pressure and the engine cylin and that under these circumstances, in the initial charging of the'particular cylinder forstarting purposes, there will of necessity.

be a proportion of air delivered to the cylinder in advance of the mixture of air and This sufliciently adulterates the charge to prevent a too-rich mixture, hence insuring a proper combustion mixture. Furthermore, in the accompanying specification and claim, the term jet is used to indicate a finely divided or minute stream of gasolene, hence being intended to infuel tank connected with the fuel supply pipe.

In testimony whereof I afiix my signature in presence of two witnesses.

ORLANDO DUCKER. 'VVitnesses:

V. B. HILLYARD, Bnxnm'r S. J onns.

. Copies ottl is patent may be obtained for five cents each, by addressing the Commissioner of l'atents,

Washington, D. G.

ers is direct, 

